Mitsubishi Outlander XL. Manual - part 486

LOGIC FLOW CHARTS (Monitor Sequence)

ZC604073

Ne : Engine Speed (rpm)
N

IPG-A

 : Input speed (Input  

             shaft speed sensor)
Vsp : Vehicle Speed (km/h)

Good

END

No

No

No

 

Ne - N

IPG-A  

≧

(40 + Vsp) / 2

 

Continuous failure 

for 30 secs.

Lockup engaged

No

No

 

      

Engine speed signal

is normal

Input shaft speed sensor

is normal

START

Yes

Yes

Yes

Yes

Yes

Malfunction

0000

DTC SET CONDITIONS

Check Conditions

｠

Solenoid status: plunging into connecting condition.

｠

Crankshaft position sensor: normality.

｠

Input shaft speed sensor: normality.

Judgement Criteria

｠

Calculated slip (engine speed - input shaft speed):
(40 + <vehicle speed/2>). (30 seconds)

OBD-II DRIVE CYCLE PATTERN
Start the engine, and drive at 100 km/h (62 mph) for
10 seconds. Then stop the vehicle, and turn OFF the
ignition switch. After that, restart the engine, and drive
again at 100 km/h (62 mph) for 10 seconds.

AUTOMATIC TRANSAXLE MECHANICAL

23A-59

AUTOMATIC TRANSAXLE DIAGNOSIS

 

DESCRIPTIONS OF MONITOR METHODS

｠

When the input shaft speed sensor and the output
shaft speed sensor are normal at the "D" range, the
engine speed signal is normal, and within the non-
lock-up  operation  range,  the  extremely  low  slip
speed  of  the  torque  converter  is  detected
continuously for a specified time. (P0742)

MONITOR EXECUTION

｠

Continuous

MONITOR EXECUTION CONDITIONS (OTHER
MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored in
memory for the item monitored below)

｠

Not applicable

Sensor (The sensor below is determined to be
normal)

｠

Not applicable

23A-60

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS

LOGIC FLOW CHARTS (Monitor Sequence)

ZC604074

Good

START

END

No

No

Malfunction

Timer start

No

No

No

No

No

Output shaft speed sensor

is normal

No

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Input shaft speed sensor

is normal

Engine speed signal

is normal

Range is “ D ”

Lockup engaged

Timer > 5 secs.

N

OPG-B  

> 1000 rpm

| Ne - N

IPG-A  

| 

≦ 

5 rpm

Continuous failure  
      for 5 secs.

Ne : Engine Speed (r/min)
N

IPG-A

 : Input speed (Input shaft

            speed sensor r/min)

N

OPG-B

 : Output speed (Output shaft

             speed sensor r/min)

0000

AUTOMATIC TRANSAXLE MECHANICAL

23A-61

AUTOMATIC TRANSAXLE DIAGNOSIS

DTC SET CONDITIONS

Check Conditions

｠

Output speed: more than 1,000 r/min.

｠

Solenoid status: 5 seconds after not plunging into
connecting condition.

｠

Transmission range switch position: D.

｠

Input shaft speed sensor: normality.

｠

Output shaft speed sensor: normality.

Judgement Criteria

｠

Calculated slip (engine speed - input shaft speed):
5 r/min or less. (5 seconds)

OBD-II DRIVE CYCLE PATTERN
Start the engine, and drive at 30 km/h (19 mph) for 30
seconds.  Then  stop  the  vehicle,  and  turn

"LOCK" (OFF) the ignition switch. After that, restart
the engine, and drive again at 30 km/h (19 mph) for
30 seconds.

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)

｠

Malfunction of the P0743: lock-up and low-reverse
brake linear solenoid valve system circuit

｠

Malfunction  of  the  P0712:  transmission  fluid
temperature sensor system (short circuit)

｠

Malfunction  of  the  P0713:  transmission  fluid
temperature sensor system (open circuit)

｠

Poor installation of the engine and A/T (deviation to
the axial direction)

｠

Malfunction of the torque converter

｠

Malfunction of the valve body assembly

 

DIAGNOSIS

STEP 1. Hydraulic pressure test
Refer to P.23A-21.

Q:Is the check result normal?

YES:

 Go to Step 2.

NO:

 Repair or replace the failure section.

STEP 2. Check the lock-up and low-reverse brake linear
solenoid.
Check  for  P0743  (lock-up  and  low-reverse  brake  linear
solenoid). Refer to P.23A-64.

Q:Is the check result normal?

YES:

 Go to Step 3.

NO:

 Repair or replace the failure section.

STEP 3. Check the transmission fluid temperature sensor,
input shaft speed sensor, and output shaft speed sensor.
Check  the  following  DTCs:  P0712  (transmission  fluid
temperature  sensor  (short  circuit)),  P0713  (transmission  fluid
temperature  sensor  (open  circuit)),  P0715  (input  shaft  speed
sensor) and P0720 (output shaft speed sensor).
Refer  to  P.23A-30(P0712),  P.23A-34(P0713),  P.23A-37
(P0715), P.23A-42(P0720).

Q:Is the check result normal?

YES:

 Go to Step 4.

NO:

 Repair or replace the failure section.

STEP 4. Check the malfunction of CAN communication
system.

Q:Are the DTC for CAN communication system malfunction

(U0001, U0100, U0141, P1705, P1706) set?

YES:

 Repair or replace the failure section.

23A-62

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS